Civel-Mazens, Matthieu; Cortese, Giuseppe; Crosta, Xavier: Radiolarian-based sub-surface temperatures over the last 40 kyrs in core MD11-3353 northeast of Kerguelen Island, Southern Ocean [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.931999 (dataset in review)
Abstract:
Radiolarian census counts were used to quantitatively estimate summer sub-surface temperatures (sub-ST) over the last 40,000 years in core MD11-3353, collected in 2011 on board the R.V. Marion Dusfresne west of Kerguelen Island, Southern Ocean. The transfer function used to reconstruct summer (Janunary to March) Sub-ST (200 meters deep) is the Imbrie and Kipp method that here uses 207 surface sediment samples, the relative abundances of 81 radiolarian taxa and 5 factors (Civel et al., 2021). This method yields a root mean square error of prediction of ~1.5 °C. The core chronology is detailed in Thöle et al. (2019).
Keyword(s):
Related to:
Civel-Mazens, Matthieu; Crosta, Xavier; Cortese, Giuseppe; Michel, Elisabeth; Mazaud, Alain; Ther, Olivier; Ikehara, Minoru; Itaki, Takuya (2021): Impact of the Agulhas Return Current on the oceanography of the Kerguelen Plateau region, Southern Ocean, over the last 40 kyrs. Quaternary Science Reviews, 251, 106711, https://doi.org/10.1016/j.quascirev.2020.106711
Further details:
Thöle, Lena M; Amsler, Helen Eri; Moretti, Simone; Auderset, Alexandra; Gilgannon, James; Lippold, Jörg; Vogel, Hendrik; Crosta, Xavier; Mazaud, Alain; Michel, Elisabeth; Martínez-García, Alfredo; Jaccard, Samuel L (2019): Glacial-interglacial dust and export production records from the Southern Indian Ocean. Earth and Planetary Science Letters, 525, 115716, https://doi.org/10.1016/j.epsl.2019.115716
Coverage:
Latitude: -50.567000 * Longitude: 68.385000
Date/Time Start: 2011-01-30T00:00:00 * Date/Time End: 2011-01-30T00:00:00
Minimum DEPTH, sediment/rock: 0.04 m * Maximum DEPTH, sediment/rock: 3.70 m
Event(s):
MD11-3353 * Latitude: -50.567000 * Longitude: 68.385000 * Date/Time: 2011-01-30T00:00:00 * Elevation: -1568.0 m * Campaign: MD185 (INDIEN SUD 2) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer II (CALYPSO2)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Crosta, Xavier | Geocode | |
| 2 | AGE | Age | ka BP | Crosta, Xavier | Geocode | |
| 3 | Sub-surface temperature, summer | SubT sum | °C | Crosta, Xavier | Transfer function (Imbrie & Kipp, 1971, in Turekian, Yale Univ Press) | 200 m depth, Root Mean Square Error of Prediction of 1.5 °C |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
74 data points